weidu 102 level question about a variable

[Awachi]

Goal is to read the # of the last row in the 2da.  Error is "weidu can't make song an integer" (and is on the second instance, not the read)

COPY_EXISTING songlist.2da override
	COUNT_2DA_ROWS 1 rows
		READ_2DA_ENTRY rows 1 1 song

COPY_EXISTING_REGEXP "^.*\.are$" override
	READ_LONG 0x00bc songoff
	WRITE_LONG (songoff + 0x0c) song
BUT_ONLY

 

[subtledoctor]

%song% is a string. So I guess you need WRITE_ASCII.

EDIT - or rather WRITE_EVALUATED_ASCII.

EDIT 2 - or, not sure what you are actually trying to read. Remember that READ_2DA_ENTRY designates the first counted row or column as 0. SO if you are trying to get the index number in the first column, you would do

READ_2DA_ENTRY rows 0 1 song

Also  COUNT_2DA_ROWS gives you the actual number of rows, but when doing a READ or WRITE it again counts one as row 0. In this case because your column count is 1, %rows% matches up because it is counting the row with no valid data in it. ("     Name        RESOURCE") But it might not be best to include rows like that in your READ. If you are trying to get the value of the bottom-most index in the first column, if it was me, I would probably do this:

COPY_EXISTING songlist.2da override
    COUNT_2DA_COLS cols
    COUNT_2DA_ROWS cols rows
    READ_2DA_ENTRY (rows - 1) 0 cols song_num
BUT_ONLY

 

Edited April 7, 2022 by subtledoctor

[jmerry]

Considering you're looking for the second entry (the song's name) in the row after the last one, no wonder it can't be converted to an integer.

All of the indexing for 2da stuff starts at zero.

 

Edited April 7, 2022 by jmerry

[Awachi]

Ah, so first entry is 0 and count from there.

Another pixel of width added to my progress bar.  

Edited April 7, 2022 by Awachi

[subtledoctor]

7 hours ago, Awachi said:

Ah, so first entry is 0 and count from there.

Yeah but only in READ_ and SET_ commands. COUNT_2DA_ROWS starts from 1. So

COUNT_2DA_ROWS 3 rows

might give you a value of 20 in the %rows% variable; but a subsequent

READ_2DA_ENTRY rows 1 3 val

will error out because the last row number is 19. 

It can be annoying. 

Edited April 7, 2022 by subtledoctor

[Awachi]

This is like idioms in a foreign language. Thanks. 

[guyudennis]

8 hours ago, subtledoctor said:

Yeah but only in READ_ and SET_ commands. COUNT_2DA_ROWS starts from 1. So

COUNT_2DA_ROWS 3 rows

might give you a value of 20 in the %rows% variable; but a subsequent

READ_2DA_ENTRY rows 1 3 val

will error out because the last row number is 19. 

It can be annoying. 

I met the same annoy-ness and thought I was an idiot... took a big chunk of me hair (pulling) to get it working eventually.

[jastey]

On 4/7/2022 at 9:26 AM, Awachi said:

Another pixel of width added to my progress bar.

We expect a well-explained tutorial at the end of the road.

[Awachi]

Oof, yeah.  I'll gladly pay my debt.  Do we like whiteboard presentation via MS Paint?